How to Get the 'Worth A Thousand Words' Achievement in Assassin's Creed: Revelations

So you just got Assassin's Creed: Revelations yesterday, and you're loving it. Awesome! But, oh no, what's this? You can't find all of the Memoir Pages to unlock the Hagia Sophia level? What do you do?

YouTuber PowerPyx has a great guide for finding those dastardly Memoir Pages. And the best part? It'll net you 20G on Xbox 360, and a bronze trophy on PlayStation 3. Nothing like a good incentive to find all the things, right?